GLACIAL IMPACTS ON LACUSTRINE ECOLOGY, GEOPHYSICAL SYSTEMS AND POLLUTANT CHEMISTRY IN THE HIGH ARCTIC

冰川对高纬度北极湖泊生态、地球物理系统和污染物化学的影响

• 批准号: 2222991
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2222991
• 关键词: GLACIAL; IMPACTS; LACUSTRINE; ECOLOGY; GEOPHYSICAL

This project will utilise a multi-proxy approach to analyse lake core sediments at high temporal resolution and reconstruct a historical record of the changing glacial history and sedimentological processes affecting the study sites, sediment chemistry profiles (including the presence of a selection of nutrients, POPs, mercury and lead) and shifts in diatom assemblages (key primary producers in Arctic environments; Ryves et al., 2002). This will provide a diverse spatial and historical overview of Arctic lake sedimentation, ecosystem variability and pollutant accumulation, putting the present processes into climatic context, and providing key data to develop models on the impacts of future climate change on these freshwater ecosystems.

该项目将利用多指标方法以高时间分辨率分析湖泊岩心沉积物，并重建影响研究地点的冰川历史和沉积学过程变化的历史记录、沉积物化学剖面(包括营养物质、持久性有机污染物、汞和铅的存在)和硅藻组合的变化(北极环境中的主要初级生产者；Ryves等人，2002年)。这将提供北极湖泊沉积、生态系统变异性和污染物积累的不同空间和历史概况，将目前的过程置于气候背景下，并为建立关于未来气候变化对这些淡水生态系统的影响的模型提供关键数据。